package thread;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService pool =Executors.newFixedThreadPool(2);
        for(int i=0;i<5;i++){
            Runnable r=new Runnable() {
                public void run(){
                Thread t=Thread.currentThread();
                    System.out.println(t+"正在执行任务");
                    try{
                        Thread.sleep(5000);
                    }catch(InterruptedException e){
                        e.printStackTrace();
                    }
                    System.out.println(t+"任务执行完毕");
                }
            };
            pool.execute(r);
            System.out.println("将一个任务交给线程池");
        }
        pool.shutdown();
        System.out.println("线程池已关闭");
    }
}
